John E. Tompkins

E. W. Hartung

Katherine Gnjec

Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Betty Lou Runyan

Betty Lou Runyan was a staff worker at Los Alamos during the Manhattan Project.

Luther R. Carpenter

Luther Carpenter worked for the Kellex Corporation at the K-25 Plant.